51282827 has 2 divisors, whose sum is σ = 51282828. Its totient is φ = 51282826.

The previous prime is 51282821. The next prime is 51282839. The reversal of 51282827 is 72828215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51282827 - 2⁴ = 51282811 is a prime.

It is a super-2 number, since 2×51282827² = 5259856690223858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51282821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25641413 + 25641414.

It is an arithmetic number, because the mean of its divisors is an integer number (25641414).

Almost surely, 2^51282827 is an apocalyptic number.

51282827 is a deficient number, since it is larger than the sum of its proper divisors (1).

51282827 is an equidigital number, since it uses as much as digits as its factorization.

51282827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The square root of 51282827 is about 7161.2029017477. The cubic root of 51282827 is about 371.5272326030.

The spelling of 51282827 in words is "fifty-one million, two hundred eighty-two thousand, eight hundred twenty-seven".